W49B_East
The Suzaku s discovery of recombining plasma in supernova remnants (SNRs) was a surprise because it is never expected in the fiducial Sedov model. We propose to observe the brightest recombining SNR W49B to reveal the origin of this new class of SNRs based on the high-resolution spectroscopy using XRISM/Resolve. We will identify the cooling process that formed the recombining state based on measurements of the electron temperature
obsid = 300055010 / Unique Observation/Sequence Number object = W49B_East / Object name pi_name = Collaboration XRISM / Proposal Principal Investigator Name ra = 287.793559639643 / Right Ascension (Pointing Position) (deg) dec = 9.09746032225462 / Declination (Pointing Position) (deg) roll_angle = 67.9999800089688 / Roll Angle (deg) start_time = 2024-04-23T01:42:04 / Start Time of the Observation stop_time = 2024-04-30T22:58:04 / Stop Time of the Observation exposure = 332526.9083336 / Effective Total Observation Exposure (s) public_date= 2099-12-31 / Public Date